March weather forecastHoniara, Solomon Islands
March weather forecast for Honiara, Solomon Islands: In March, the average heat index, which factors the actual air temperature with the relative humidity, is evaluated at 35°C (95°F). January, March and April, with an average relative humidity of 85%, are the most humid months.

March
Weather in March
The climatic conditions in Honiara in March echo those of February, with similar high temperatures. However, the amount of rainfall received increases, marking a contrast in the weather pattern with a recorded rainfall of 299mm (11.77"). The sea temperature experiences a slight increase, making beach expeditions all the more enjoyable. Though the increase in rain may cause some disruption to outdoor plans, the warm temperatures soften the intensity of the wet days. The relative humidity remains high, making the environment moist and warm.Temperature
The shift into March reveals an average high-temperature of a still warm 28.8°C (83.8°F), closely mirroring February's climate. Honiara's March nights demonstrate minimal variation from the daytime temperatures, with an average of 23.8°C (74.8°F).Heat index
During March, the heat index is evaluated at a torrid 35°C (95°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.Remember that heat index calculations are made for conditions in the shade with light wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
January, March and April, with an average relative humidity of 85%, are the most humid months.Rainfall
The wettest months are March and December, with an average 299mm (11.77") of rainfall.Sea temperature
In Honiara, the average seawater temperature in March is 29.8°C (85.6°F).Note: Swimming, diving, and other water endeavors at temperatures between 25°C (77°F) and 29°C (84.2°F) are considered enjoyable and satisfying for extended periods without discomfort.
Daylight
In March, the average length of the day is 12h and 10min.On the first day of the month, sunrise is at 06:23 and sunset at 18:40. On the last day of March, sunrise is at 06:23 and sunset at 18:24 +11.
Sunshine
The average sunshine in March is 7.2h.UV index
The months with the lowest UV index are January through March, June, August, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 6 in March interprets into the following advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Notice! The Sun's UV exposure elevates with sand and water reflections.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Honiara, Solomon Islands
- Average high temperature in March: 28.8°C
The warmest month (with the highest average high temperature) is December (29.3°C).
The month with the lowest average high temperature is July (27.8°C).
- Average low temperature in March: 23.8°C
The month with the highest average low temperature is January (24.2°C).
The coldest months (with the lowest average low temperature) are August and September (23.4°C).
Average pressure in March
Honiara, Solomon Islands
- Average pressure in March: 1007.8mbar
The month with the highest atmospheric pressure is August (1010.5mbar).
The month with the lowest atmospheric pressure is January (1006.9mbar).
Average wind speed in March
Honiara, Solomon Islands
- Average wind speed in March: 7.5km/h
The windiest month (with the highest average wind speed) is July (11.3km/h).
The calmest month (with the lowest average wind speed) is December (6km/h).
Average humidity in March
Honiara, Solomon Islands
- Average humidity in March: 85%
The months with the highest relative humidity are January, March and April (85%).
The months with the lowest relative humidity are August, September, October and November (83%).
Average rainfall in March
Honiara, Solomon Islands
- Average rainfall in March: 299mm
The wettest months (with the highest rainfall) are March and December (299mm).
The driest month (with the least rainfall) is June (125mm).
Average rainfall days in March
Honiara, Solomon Islands
- Average rainfall days in March: 29.3 days
The months with the highest number of rainy days are January, March and December (29.3 days).
The month with the least rainy days is August (24.3 days).
Average sea temperature in March
Honiara, Solomon Islands
- Average sea temperature in March: 29.8°C
The best month for swimming (with the highest average sea temperature) is April (30.3°C).
The coldest month (with the lowest average sea temperature) is August (28.6°C).
Average daylight in March /
Average sunshine in March
Honiara, Solomon Islands
- Average daylight in March: 12h and 12min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in March: 7h and 12min
The month with the most sunshine is November (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in March
Honiara, Solomon Islands
- Average sunshine days in March: 0.8 days
The month with the most sunshine days is August (4 days).
The month with the least sunshine days is January (0.3 days).
Average UV index in March
Honiara, Solomon Islands
- Average UV index in March: 6
The months with the highest UV index are April, May, July and September (UV index 7).
The months with the lowest UV index are January, February, March, June, August, October, November and December (UV index 6).
Average cloud cover in March
Honiara, Solomon Islands
- Average cloud cover in March: 50
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is May (Cloud cover 41).
Average visibility in March
Honiara, Solomon Islands
- Average visibility in March: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





